Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
040029goodexcellent41excellent
030018goodexcellent21excellent
020014goodexcellent21excellent
010014goodexcellent31excellent
000015goodexcellent31excellent
230013goodexcellent21excellent
22009excellentexcellent21excellent
210014goodexcellent21excellent
200016goodexcellent31excellent
190020goodexcellent31excellent
180013goodexcellent21excellent
17009excellentexcellent11excellent
16005excellentexcellent11excellent
15004excellentexcellent11excellent
14004excellentexcellent11excellent
13005excellentexcellent11excellent
12008excellentexcellent11excellent
11005excellentexcellent11excellent
10009excellentexcellent11excellent
090013goodexcellent11excellent
08009excellentexcellent11excellent
07005excellentexcellent11excellent
060015goodexcellent21excellent
050012excellentexcellent11excellent